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 Post subject: Noctua NF-A15 vs Thermalright TY-147A
PostPosted: Fri Sep 09, 2016 7:57 pm 
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Hi,

Would like to know Your opinion about these fans, which one is quietest up to 700 rpm?

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 Post subject: Re: Noctua NF-A15 vs Thermalright TY-147A
PostPosted: Fri Sep 09, 2016 9:20 pm 
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koxy wrote:
Hi,

Would like to know Your opinion about these fans, which one is quietest up to 700 rpm?

My very personal opinion is that the TR fan is slightly but clearly more agreable.

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 Post subject: Re: Noctua NF-A15 vs Thermalright TY-147A
PostPosted: Sat Sep 10, 2016 5:49 am 
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Joined: Tue Nov 02, 2004 12:22 pm
Posts: 3540
Location: Guatemala
koxy wrote:
Hi,

Would like to know Your opinion about these fans, which one is quietest up to 700 rpm?
I think both are great fans, i used to run NF-A15 PWM 1200 on my Thermalright Silver Arrow IBE and i have no regrets, now i run two TY-147A PWM on Prolimatech Genesis, also good fans, i run them mostly at 450rpms and rarely i see them ramp to 600rpm, most of the time they stay below 500rpm. Another very good PWM fan is the NF-P14R PWM REDUX, cheaper than NF-A15 PWM, and decent in all aspects. I leave you a graph the range of operation of the 3 fans.

Image

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 Post subject: Re: Noctua NF-A15 vs Thermalright TY-147A
PostPosted: Sat Sep 10, 2016 8:22 am 
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Location: UK
It might be worth noting that there are two versions of the NF-A15, the one supplied with Noctua's CPU coolers that has a top speed of 1500 rpm and the retail version which has a 1200 rpm spec. I have the retail version to hand.

There are also two versions of the Thermalright TY-147A, the original one that was oblong (140mm x 152mm) and the newer TY-147ASQ version which is 140mm square. I have both of these. Top speed for both is rated as 1300 rpm. The SQ model has a more aggressive PWM profile than the earlier one.

As requested I will run all of these at 700 rpm or close to it, and try to make some judgement about their sound.

First, the NF-A15 1200 running at 701 rpm at 55% PWM duty cycle. No perceptible noise at 1 metre/3 feet, at close range (next to the ear) a low pitched tone.

Second, the original TY-147A running at 703 rpm at 63% duty cycle. A distinct clicking noise is present, maybe just a bad sample. This was one of two fans that I acquired new for only £5 each. The other one was OK but I hadn't tested this one until now. So that's why they were so cheap...

Third, the TY-147ASQ running at 705 rpm at 48% duty cycle. Noise levels I would say about the same as the NF-A15. Tone at close range is more high pitched than the A15.

My conclusion is that there is not enough in it to pick one over the other in a working system, at this speed level or at lower speeds. The TY-147ASQ by the way is going into a Fractal Design R5 gaming system that I am building for a family member. This system will have a Noctua NH-U14S cooler with the 1500 rpm version of the A15. The 1200 rpm retail version A15 is going to be the rear exhaust fan and will be linked to or chained from the CPU cooler using the Asus CPU_OPT fan header.


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 Post subject: Re: Noctua NF-A15 vs Thermalright TY-147A
PostPosted: Sat Sep 10, 2016 10:26 am 
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Joined: Fri Nov 28, 2014 3:08 am
Posts: 11
Abula wrote:
I think both are great fans, i used to run NF-A15 PWM 1200 on my Thermalright Silver Arrow IBE and i have no regrets, now i run two TY-147A PWM on Prolimatech Genesis, also good fans, i run them mostly at 450rpms and rarely i see them ramp to 600rpm, most of the time they stay below 500rpm. Another very good PWM fan is the NF-P14R PWM REDUX, cheaper than NF-A15 PWM, and decent in all aspects. I leave you a graph the range of operation of the 3 fans.

Image



Thanks Abula for detailed info, i own 2x NF-P14R and must say I'm not happy with them, with my A15 (1500 rpm) have better temp results and are much quieter which is obvious because they spin at lower rpm (650 rpm max) to keep temps at reasonable levels. At 650 rpm NF-P14R are louder and temps also higher. what i don't like with A15 is their colour scheme, that's why im thinking about TY-147A

lodestar wrote:
It might be worth noting that there are two versions of the NF-A15, the one supplied with Noctua's CPU coolers that has a top speed of 1500 rpm and the retail version which has a 1200 rpm spec. I have the retail version to hand.

There are also two versions of the Thermalright TY-147A, the original one that was oblong (140mm x 152mm) and the newer TY-147ASQ version which is 140mm square. I have both of these. Top speed for both is rated as 1300 rpm. The SQ model has a more aggressive PWM profile than the earlier one.

As requested I will run all of these at 700 rpm or close to it, and try to make some judgement about their sound.

First, the NF-A15 1200 running at 701 rpm at 55% PWM duty cycle. No perceptible noise at 1 metre/3 feet, at close range (next to the ear) a low pitched tone.

Second, the original TY-147A running at 703 rpm at 63% duty cycle. A distinct clicking noise is present, maybe just a bad sample. This was one of two fans that I acquired new for only £5 each. The other one was OK but I hadn't tested this one until now. So that's why they were so cheap...

Third, the TY-147ASQ running at 705 rpm at 48% duty cycle. Noise levels I would say about the same as the NF-A15. Tone at close range is more high pitched than the A15.

My conclusion is that there is not enough in it to pick one over the other in a working system, at this speed level or at lower speeds. The TY-147ASQ by the way is going into a Fractal Design R5 gaming system that I am building for a family member. This system will have a Noctua NH-U14S cooler with the 1500 rpm version of the A15. The 1200 rpm retail version A15 is going to be the rear exhaust fan and will be linked to or chained from the CPU cooler using the Asus CPU_OPT fan header.


Thanks. £5 its really cheap. If noise lvl is same there is no need to replace my A15's but i'm aesthetic freak so you know... xD

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Gigabyte Z97P-D3 | Intel Core [email protected] Ghz | Noctua NH-D15 + 2x Thermalright TY-147a | Crucial Ballistix Elite 8GB DDR3 1600 [email protected] CL8 | MSI R9 390 with 2x Artic F12 PWM | BenQ XL2730Z 144Hz | Samsung 850 Pro 256GB + 1GB WD Caviar Green | Fractal Design Define R4 + 3x Thermalright TY-147SQ(2 intake 1 exhaust) | Corsair RM750i 750W


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 Post subject: Re: Noctua NF-A15 vs Thermalright TY-147A
PostPosted: Sat Sep 10, 2016 1:08 pm 
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Joined: Wed Jun 13, 2007 10:12 am
Posts: 5275
Location: ITALY
koxy wrote:
There are also two versions of the Thermalright TY-147A, the original one that was oblong (140mm x 152mm) and the newer TY-147ASQ version which is 140mm square

These are not two versions of the same fan, but two different fans: BTW, I guess the OP may need some with 120mm holes (in case the SQ lineup would not be an option).


koxy wrote:
what i don't like with A15 is their colour scheme

Spray paint it.

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Luca

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 Post subject: Re: Noctua NF-A15 vs Thermalright TY-147A
PostPosted: Sat Sep 10, 2016 5:22 pm 
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Joined: Fri Nov 28, 2014 3:08 am
Posts: 11
quest_for_silence wrote:
There are also two versions of the Thermalright TY-147A, the original one that was oblong (140mm x 152mm) and the newer TY-147ASQ version which is 140mm square
These are not two versions of the same fan, but two different fans: BTW, I guess the OP may need some with 120mm holes (in case the SQ lineup would not be an option).


Yeah i need ty-147a version to fit my nh-d15

quest_for_silence wrote:
Spray paint it.

Since i know blades cant be removed without damaging fan so its not a option.

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Gigabyte Z97P-D3 | Intel Core [email protected] Ghz | Noctua NH-D15 + 2x Thermalright TY-147a | Crucial Ballistix Elite 8GB DDR3 1600 [email protected] CL8 | MSI R9 390 with 2x Artic F12 PWM | BenQ XL2730Z 144Hz | Samsung 850 Pro 256GB + 1GB WD Caviar Green | Fractal Design Define R4 + 3x Thermalright TY-147SQ(2 intake 1 exhaust) | Corsair RM750i 750W


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